The object of the game is to fling your character (you can choose from three characters) from a sling, as far across the screen as is possible whilst using the spring boards and avoiding the obstacles.
Hover over your character press and hold your mouse button and use your mouse to pull back the catapult and choice the angle of launch once you have decided you are ready to go let go of the button and watch your character fly across the screen, use your mouse button to jump over any obstacles.
So the key to this game is to get the right launch weight and angle, launch to high up in the air and you will nose dive straight into the snow and your game will be over without a hint of a slide, launch to low and you will crash into the first obstacle you find.
There's been lots of games similar to this over the years, it's an age old theme that always seems to work well. It's certainly nicely presented with excellent graphics, you get to choose what character you want to use which gives it a slight unique angle, it's also just as frustrating as the rest of them, but will keep you playing over and over in the hope you will get that extra bit further, goodness knows how some of the people on the top score board get so far.